Bare ground clamps are used to connect bare copper wire to water pipe, rebar, ground rod or copper water tubing for bonding or grounding. The L.H. Dottie 27 Grounding Clamp fits 1-1/4-Inch to 2-Inch Pipe. 10 AWG (solid) to 2 AWG (stranded) conductor. UL listed. Bronze. Includes steel screws. This listing is for a standard package containing 5 units.